Gage.



B. WEBSTER.

GAGE APPLICATION FILED NOV. I. i917.

1,298,606. Patented Mar. 25,1919.

Clttoznus l UNITED sTATEs PATENT oEEIoE.

BENJAMIN WEBSTER, 0F DETROIT, MICHIGAN, ASSIGNOR TOPERFECTION GAUGECOMPANY, 0F DETROIT, MICHIGAN, A. CORPORATION'A 0F MICHIGAN.

GAGE.

Specication of Letters Patent.

Patented Mar. 25, 1919.

To all whom it may concern:

Be it known that I, BENJAMIN WEBSTER, a citizen of the United States ofAmerica, residing at Detroit, in the county of Wayne and State ofMichigan, have invented certain new and useful Improvements in Gages, ofwhich the following 1s a specification, reference being had therein tothe accompany l detached;

Fig. 2 is a cross section;

Fig. 3 is a longitudinal section; and

Fig. t is aY plan.

A is a disk cover, which may be constructed to fit within the lillopening B of the liquid fuel tank or other apparatus in which the gageis employed; C, is an aperture in the disk A; D are ears depending fromthe disk at opposite ends of the aperture C, being preferably formedwith angle flanges E spot-welded or otherwise secured to the disk; Fis apivot pin passing through and between the ears D; G is a float-armpreferably formedy of wire and having a coil H surrounding the pin F;and I is a segment concentric with the pin F and suitably secured to'the arm G, preferably by a twopoint engagement. As specifically shown,the arm G extends in the central plane of the segment and passes throughan aperture adjacent to one end thereof, being then oif.

set at J to one end of the coil H, while from the opposite end of saidcoil is an extension of the wire o`set at K to the central plane of thesegment and engaging the opposite end thereof at the point L. This willse' curely fasten the segment to the arm and vwill maintain the sameconcentric with the pin F. The upper end of the segment has anoutwardly-bent portion' M which contacts with the lower lface of thedisk A and operates as a stop to limit ,the swinging movement of thearm'.

' The mechanical construction being as thus far described, to eifect theindication 'a spiral index N is marked or otherwise formed on the outerface of the segment I, and upon the disk A adjacent to one edge of theaperture C are suitably calibrated markings. Thus, whenever the arm G isrocked bythe actuation of the fioat (not shown) the segment I will becorrespondingly rocked and will display a different-portion of thespiral N through the aperture C adjacent to the calibration on the diskA. Each point of adjustment will produce a different position of theindex in relation to the scale, but in every case the line is clearlydisplayed, so that a reading can be easily taken.

One advantage of the construction is the \simple mechanical movementwhich does away with the necessity of` gears or any other translatingdevices for chan 'ng the direction of the motion. Also the act that thepin F is the only fulcrum avoids dan er of the sticking or binding ofparts which might render the indication inaccurate. Another advantage isthe low cost of manufacture, and still another the fact that the gagemay be inserted in the fill opening ofA the tank or liquid holding recetacle and may be readily withdrawn there rom Whenthe tank is to bere-illed. To facilitate thisv withdrawal I preferably provide struck-upears O formed from the metal removed from the aperture C, these formingconvenient grips for the thumb and finger 1n lifting out the gage.

The arrangement of the stop M at one end of the segment, which bycontact with the disk A limits the swinglng of the arm G, preventsinoperativev arrangement of the 'gagemechanism in the liquid tank. Thuswithout such a stop there would be the possibilitv of the iioat armbeing arranged to extend in the opposite direction so that theindicating segment would be reversely operated, but with the stop thearm is held at an angle wherethe vrising of the liquid will always causethe correct indication.

' hat I claim as my invention is:

l. A gage, comprising an apertured late or dial, a pivot bearingdepending t erefrom, a cylindrical segment having a spiral index thereoncooperating with markings on said plate adjacent to said aperture, and amember engaging said pivot bearing having a portion extending in onedirection from forming a float arm.

said bearing forming a support for said segment and in another directiontherefrom 2. Agage, comprising an apertured plate or dial, a pivotbearing depending therefrom, a cylindrical segment having a spiral indexthereon, and a float arm pivoted in said bearing, secured to saidsegment and forming the actuating means therefor.

3. A gage, comprisin an apertured plate or dial, a depending pivotbearing on said plate, a pin engaging said bearing, an arm having acoiled portlon engaging said pin,

and a segment secured to said arm and rocked thereby adjacent to saidaperture.

4. A gage, comprising an apertured dial .or plate, a depending pivotbearing on said plate,` a wire rock-arm having a transversely-extendingcoiled portion and portions extending longitudinally on opposite sidesof the coll, a pivot pin engaging said coil and bearing, and a segmentmounted on said arm and extension thereof and rocked thereby adjacent tosaid aperture.

5. A gage, comprising a plate or dial having an aperture therein andlugs struck up from the material removed from said aperture forming`thumb and -finger grips, a pivot bearing depending from said plate, arock-arm pivoted to said bearing, and a -or dial, an arm pivotal vablesegment secured t ereto, an apertured plate through which said segmentmay be vviewedfand a projection from said segment at one end thereof forimpinging against said plate to form a stop for limiting the swingingof'said rock-arm in one dlrection. 40

7 A gage comprising` an apertured plate supported by said plate, a oatcarried by said arm and a segment secured to said arm 'and rockedthereby adjacent to said aperture. f

8. A gage comprising an apertured plate or dial, an arm having a coiledportion, a pivotal support for said` arm carried by said plate andengaging the coiled portion thereof, and a segment secured to said armand rocked thereby adjacent to said aperture.

. 9. A gage'comprising a rock arm and f rockable segmentsecured'thereto, an apertured plate through which said segment may beviewed, and means limiting the rocking of said segment in one direction.

In testimony whereof I airix my signature.

BENJAMIN WEBSTER.

